Could the extra swelling and soreness be part of the rhino healing process or infection?

It is not abnormal to have areas that feel tight or sore as they heal especially in the bony areas of your nose. If you think that you may be having sinus issues, that can occur as a result of the surgery but should resolve over time. In either case, I would follow up with your concerns with your rhinoplasty surgeon.

It can be normal for swelling to go up and down after rhinoplasty for several months. But you should check with your surgeon to make sure nothing more serious is going on.

Three months after surgery you should not be experiencing any discomfort, while minor swelling could be persistent.  Please reach out to your plastic surgeon, as we surgeons are always happy and available to meet with our patients to evaluate their healing progress.  Thank you for your question and best of luck to you.

The discomfort in your nose three months after a Rhinoplasty may not be infection, unless if you have a dorsal nasal implant. Certainly visit your surgeon so you can obtain a diagnosis and be treated appropriately. Hope this helps. Dr. Joseph 

Hi and thank you for your inquiry. I'm sorry to hear you are experiencing discomfort. It's normal after a rhinoplasty, to experience bruising and swelling. The final healing time can take up to 1 year. I suggest you address your concerns at your upcoming appointment with your doctor. It is too soon to say that there is a problem. 
All the best,
Dr. Gary Linkov